EP 4109656 A4 20231108 - END COVER ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE
Title (en)
END COVER ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE
Title (de)
ENDKAPPENANORDNUNG, BATTERIEZELLE, BATTERIE UND ELEKTRISCHE VORRICHTUNG
Title (fr)
ENSEMBLE COUVERCLE D'EXTRÉMITÉ, ÉLÉMENT DE BATTERIE, BATTERIE ET DISPOSITIF ÉLECTRIQUE
Publication
Application
Priority
- CN 202010991769 A 20200921
- CN 2021112790 W 20210816
Abstract (en)
[origin: EP4109656A1] The embodiments of the present application provide an end cover assembly, a battery cell, a battery and an electric device. The end cover assembly (10) is used for the battery cell (400). The end cover assembly (10) comprises: an end cover body (1); a pressure relief component (2) connected to the end cover body (1), wherein the pressure relief component (2) is provided with a first through hole (21) used for injecting an electrolyte, and the pressure relief component (2) is configured to be actuated when the internal pressure of the battery cell (400) reaches a threshold value so as to relieve the internal pressure of the battery cell (400); and a closing component (3) detachably provided on the pressure relief component (2), wherein the closing component (3) is configured to close the first through hole (21).
IPC 8 full level
H01M 50/30 (2021.01); H01M 50/103 (2021.01); H01M 50/147 (2021.01); H01M 50/15 (2021.01); H01M 50/166 (2021.01); H01M 50/325 (2021.01); H01M 50/60 (2021.01); H01M 50/618 (2021.01); H01M 50/627 (2021.01); H01M 50/645 (2021.01); H01M 50/655 (2021.01)
CPC (source: CN EP KR US)
H01M 10/0525 (2013.01 - CN); H01M 50/102 (2021.01 - US); H01M 50/103 (2021.01 - EP); H01M 50/15 (2021.01 - EP); H01M 50/166 (2021.01 - EP US); H01M 50/317 (2021.01 - US); H01M 50/325 (2021.01 - EP KR); H01M 50/572 (2021.01 - KR); H01M 50/618 (2021.01 - EP KR); H01M 50/627 (2021.01 - US); H01M 50/655 (2021.01 - EP KR); H01M 50/668 (2021.01 - EP KR); H01M 2220/20 (2013.01 - CN EP KR US); Y02E 60/10 (2013.01 - EP KR)
Citation (search report)
- [XY] CN 205790148 U 20161207 - SUZHOU KAIHONG POLYMER TECH CO LTD
- [Y] CN 210403786 U 20200424 - SUZHOU SUMZONE NEW ENERGY TECH CO LTD
- [A] US 2005221174 A1 20051006 - YOON HEUI S [KR]
- See references of WO 2022057544A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4109656 A1 20221228; EP 4109656 A4 20231108; CN 111933833 A 20201113; CN 111933833 B 20210101; JP 2023521793 A 20230525; KR 20220145398 A 20221028; US 2023125313 A1 20230427; WO 2022057544 A1 20220324
DOCDB simple family (application)
EP 21868372 A 20210816; CN 202010991769 A 20200921; CN 2021112790 W 20210816; JP 2022561636 A 20210816; KR 20227033900 A 20210816; US 202218069237 A 20221221